CVE Vulnerability

CVE-2020-8244

A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.

6.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://hackerone.com/reports/966347 Exploit Patch
https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:node.js:*:*
cpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:node.js:*:*
cpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:node.js:*:*
cpe:2.3:a:bufferlist_project:bufferlist:*:*:*:*:*:node.js:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2020-08-30 03:15

Updated : 2022-05-24 05:31

NVD link : CVE-2020-8244

Mitre link : CVE-2020-8244

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read